Floor-clamp.



I. E. JOHNSON. FLooR CLAMP. APPLICATION FILED NOV. 18I9I5- 1,228,214.Patente@ May 29, 1917.

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l. E. JOHNSON.

FLOOR CLAMP. y APPLICATION FILED Nov.1a. 1915'.

Patented May 29,1917.

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rOHN E. JOHNSON, or NUNIsINe, MICHIGAN. ,i

FLOOR-CLAMP.

Specication of Letters Patent.

Patented May 29, 1917.

Application filed November 18, 1915. Serial N o. 62,192.

To all wzom t may concern:

Be it known that I, JOHN E. JOHNSON, a citizen of the United States,residing at unising, in the county of Alger, in the State of Michigan,have invented -certain new and useful Improvements in Floor- Clamps, ofwhich the following is a specification.

This invention relates to improvements in Y floor clamps and its objectis to produce a tool adapted for use in laying flooring. The toolcomprises the base plate adapted to be removably secured to the wall in.the room 1n which the flooring and an operating block associated withthe rack. he invention will be described in detail in the followingspecification, its advantages more particularly pointed out in theappended claims and illustrated in the accompanying drawings which forma part of said specification and in which- Figure l is a side elevationof my proved floor clamp in use for laying flooring.

Fig. 2 is a plan view of is taken on line 2-2 of Fig. 1.

Fig. 3 is a longitudinal sectional view through Fig. 1 with the movableparts in an altered position.

Fig. 4f is a detail view of a portion of the rack and of one operatingblock.

Fig. 5 is an inverted plan view of the rack shown in Fig. 4.

Fig. 6 is a section taken on line 6`6 of Fig. 3.

Fig. 7 is a top plan view of the operating block shown in Fig. 4.

Fig. 8 is a sectiontaken on line `8--8 of Fig. 7. Y y

Like reference characters indicate corresponding parts throughout theseveral views.

e reference numeral 1 denotes the base plate which is adapted to beremovably secured, in any suitable manner, to the wall e room in whichthe flooring is to be In a bracket 3 integral with the base plate 1 oneend of thel runner bar 4 is sethe same and wall 2 and being infr atright angles to the b b the said operatively supported by Vmeans carriedby said block and rack bracket formed, further, with a plurality ofrecesses or notches 9 arranged centrally of its under side, said notchesbeing adapted to receive in the grooved portions 8 of said rack tosupport the block. The block 1l, further, is formed with a depending leghaving a notch 15 adapted to engage with the tenon of a piece offlooring 16 to move the flooring.

A pawl 17 carried by the Operating lever 18, which is fulcrumed in abearing 19 carried by the base plate, is adapted for engagement with theteeth 7 of the block 6 to move said block in a direction away from thewall 2. The form of block just described is used to lay flooring. Whenthe rst piece of liooringis laid the neXt disposed in one of the notches9 of the rack 6; this engagement of the block and close engagement withpiece.

What is claimed is l. In a floor clamp, a baseplate, a runner barcarried thereby, a rack slidably arranged uponvsaid runner bar, a blockembracing and slidably connected 4to said rack,

wherby they may be releasably locked in operative relation, a notchedleg formed integral with said block and a lever'fulcrumed upon said baseplate for operative engagement with said rack.

2. In a floor clamp, bar carried thereby, a rack, having longitudinallygrooved sides and a notched face, lidably arranged upon said runnerYbar, a

lock

a base plate, a runnery 5 notched leg carried by said block and a,

lever nlorumed upon said base plate for operative engagement With saidrack.

in the presence of tWo subscribing witnesses. 1o

HN E. JOHNSON.

Witnesses: p

NELs E. FROBERG, ANSEL BERGLUND.-

Copies of this patent 'may be obtained for ve 'cents each, By dr'essngthe Commissioner of Patents, Washington, D, C.

